pleased to recieve lighthouse Visibility advices

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Anonymous Poster	pleased to recieve lighthouse Visibility advices 09/15/2008 7:29 AM
	The near bye lghth house has the 20,000 candel power light revolving behind a clear fresnel lens. The flash of de light is set to blink vertically every 8 seconds. How far can it be seen during a penumbral eclipse?
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This discussion was "closed" on 09/15/2008 9:07 AM. No new comments are allowed.
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Chris Leonard Friend of CR4 Join Date: Dec 2004 Posts: 1776 Good Answers: 35	#1 Re: pleased to recieve lighthouse Visibility advices 09/15/2008 9:08 AM
	Do your own homework! CR4 is not a homework cheat site. While some here might relish the opportunity to sharpen up old rusty skills by working the homework problem, consider this and consider it well. If you cheat on your homework by using someone else's answers, you are only cheating yourself, because the purpose of any homework or other college assignments is to help you learn, by practice, repetition, and self-discovery. __________________ Off to take on other challenges. Good luck everybody! See you around the Interwebs.
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This discussion was "closed" on 09/15/2008 9:07 AM. No new comments are allowed.
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Homework.

You might be interested in: Fresnel Lenses, Light Emitting Diodes (LED), Light Guides

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